Day0: Private Diary

Day0 is a diary that only you will ever read. Log the moments that matter: who they were about, when they happened, and a note only you need to understand. By default everything stays on your phone. If you want the same records on another device, turn on optional sync: it is end-to-end encrypted with a key only you hold, so no one else can read what you wrote. What's inside: • Log a moment in a few taps, or let the built-in timer keep the record for you • Build a quiet profile for each character you care about: birthday, aliases, your own notes • Keep track of the things you've collected, and watch the cost of each use settle over time • Review your history as calendars, timelines, and monthly look-backs • Lock your most private notes behind Face ID; the lock screen and widgets never reveal content • Nine hand-tuned themes, a quiet mascot, and achievements that never nag • Encrypted backups you control, exported as a single password-protected file There's no streak to keep, no leaderboard, no nudging. Write as much or as little as you want. Day0 keeps the record, quietly.